Chemistry Question

I am trying to make a small amount of silver fulminate for throw snaps. I am using a recipe from a very old book and it says I should add 70 minimums of concentrated nitric acid. Any ideas on what a modern measurement of a minimum would be, and where I could buy concentrated nitric acid?

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Kiteman10 years ago
The word is minim:

# a British imperial capacity measure (liquid or dry) equal to 1/60th fluid dram or 0.059194 cubic centimeters
# a United States liquid unit equal to 1/60 fluidram

70 minims = 4.14cm3
Kiteman Kiteman10 years ago
Sedgewick17 (author)  Kiteman10 years ago
Do they mean dry cells or somthing like a car battery that has electrolites?Because I thought that the electrolites in a car batterywere made of hydracloric acid.
Sulfuric acid. At least the one's here in the states.
Kiteman Goodhart10 years ago
Could there be a reaction 'twixt battery acid and KNO3 to produce nitric acid and a different salt (K2SO4? KCl?)
Goodhart Kiteman10 years ago
Hmmm, H2SO4 + (2)KNO3 --> H2 + (4)O2 + K2SO4

Check me out...does that balance ?
Kiteman Goodhart10 years ago
Just (3)O2 , methinks.
Goodhart Kiteman10 years ago
Let me talk it out to myself....we start with O4 and order to balance the equation, I doubled the KNO3 so we now have O3 * 2 and O4 giving us a total of 10 as it were.

We end up with.......yep, you are correct ! it balanced with --> (3)O2

That often happens when I rush though something :-)
Goodhart Goodhart10 years ago
Opps, I forgot about the Nitrogen, ... that is what you referred to when asking about it.....hmmm How about this ?

H2SO4 + (2)KNO3 --> (2)HNO3 + K2SO4
Kiteman Goodhart10 years ago
A-ha, yes.

Note to self: never try making nitric acid when it's late at night and you're low on iron
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